Home / 3,638.72-5,021.47-2,066.85

Finding the Fourth Proportional to 3,638.72, 5,021.47 and 2,066.85

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Solution

The fourth proportional to 3,638.72, 5,021.47 and 2,066.85 is: 2,852.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.72 : 5,021.47 = 2,066.85 : x
  2. Step 2: Convert to fraction form
    3,638.72/5,021.47 = 2,066.85/x
  3. Step 3: Cross multiply
    3,638.72x = 5,021.47 × 2,066.85
  4. Step 4: Simplify right side
    3,638.72x = 10,378,620.10
  5. Step 5: Solve for x
    x = 10,378,620.10/3,638.72
  6. Step 6: Final answer
    x = 2,852.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.